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GType tutorial: clarify class struct initialisation

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Make the information on how the class structure is initialised less
confusing to first-time readers.
This commit is contained in:
Ryan Lortie 2011-09-11 15:44:39 -04:00
parent 61b51555ec
commit cab5b8abd3
1 changed files with 5 additions and 4 deletions
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9
docs/reference/gobject/tut_gtype.xml
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@ -533,10 +533,11 @@ void g_type_free_instance (GTypeInstance *instance);
</para>
<para>
If this is the first instance of the object ever created, the type system must create
a class structure: it allocates a buffer to hold the object's class structure and
initializes it. It first copies the parent's class structure over this structure
(if there is no parent, it initializes it to zero). It then invokes the
If this is the first instance of the object ever created, the type system must create a class structure.
It allocates a buffer to hold the object's class structure and initializes it. The first part of the
class structure (ie: the embedded parent class structure) is initialized by copying the contents from
the class structure of the parent class. The rest of class structure is initialized to zero. If there
is no parent, the entire class structure is initialized to zero. The type system then invokes the
base_class_initialization functions (<link linkend="GBaseInitFunc"><type>GBaseInitFunc</type></link>) from topmost
fundamental object to bottom-most most derived object. The object's class_init
(<link linkend="GClassInitFunc"><type>GClassInitFunc</type></link>) function is invoked afterwards to complete